柏拉图心目中理想国家的统治者应该是 [ ]
A．公民推选出来的贤士
B．战场上克敌制胜的勇士
C．仁慈而有权威的贵族
D．富于理性和智慧的学者
答案：D
Norman Bethune ________ for over 60 years.[ ]
A. has died
B. died
C. has been dead
D. was died
下列说法正确的有（）
A.本币贬值一定会使国际收支得到改善
B.本币贬值不一定会使国际收支得到改善
C.|Ex+Em|>1时，本币贬值会使国际收支得到改善
D.|Ex+Em|=1时，本币贬值会使国际收支得到改善
E.|Ex+Em|<1时，本币贬值会使国际收支得到改善
